Lock.



C. F. KOHLBERGER.

LOCK. APPLICATION FILED JUNE 16. I915- Patented Sept. 4, 191?.

3 SHEETSSHEET I.

C. F. KOHLBERGER.

LOCK. APPLICATION FILED JUNE 16. I915- Patented Sept. 4, 1917.

3 SHEETS-SHEET 2.

C. F. KOHLBERGER.

LOCK. 19239918 APPLICATION FILED JUNE I6. I915. Patentedsptl 4,191 17.

3 SHEETSSHEET a.

In wen $02":

(erase PATENT op nion.

CHARLES F. KOI-ILBERGER, OF NEW YORK, N. Y.

LOCK.

Application files June 16, 1 915.

' To all whom it may concern:

Be it known that 1, CHARLES F. K0111. BERGER, a citizen of the UnitedStates, residing in New York city, in the county of Bronx and State ofNew York, have invented certain new and useful Improve is to provide aconstruction particularly adapted for a latch in which the bolt of thelatch may be extended in looking position, which bolt is resilientlyextended and equipped with the usual bevel end which, when it engagesthestrike of the latch, will recede and after having passed such strikewill immediately spring out again, which construction has a means forprotecting such bolt from being tampered with when the door to which itis attached is locked, with the intent to retract the same.

A particular use for this latch is that it may be used on a smallswinging door that may behung on a larger sliding door, or it may beattached to the end of a series of collapsible doors, and in either caseit would act as a lock to the entire outfit as well as a latch to theend door. o

A further object of the invention is to provide a means for preventingthe members with which a bolt is operatively connected from being xpriedapart, or far enough apart to obtain access to such bolt.

Still another object of the invention is to provide a protecting meansfor a latch as above set forth, which protecting means is particularlysimple in construction, easy to manufacture and can be produced atcomparatively low cost.

integral with a part of the housing of such .latch and thus does notcontemplate the making of any extra parts.

A particular feature of the invention is that the extending portion ofthe protecting and securing means is attached entirely to the lockcasing rather than to the strike and Specification of Letters Patent.

Patented Sept. 41, 1121?.

$erial No. 34,336.

therefore will not obstruct the passageway.

These and other features, capabilities and advantages of the inventionwill appear from the subjoined detail description of one specificembodiment thereof illustrated in the accompanying drawings in whichFigure 1 is a perspective showing the strike of a latch to be used withthe present lnvention and which is adapted to 'be attached to the frameof a door.

Fig. 2 is a perspective of a part of the latch to be fastened to thedoor.

Fig. 3 is a perspective of a part to be fastened to the protecting meansof the bolt, which protecting means is illustrated in Fig. 2. Thismember may be integral with the housing if desired.

Fig. 4 is a fragmental view showing part of the rear of the latch whichis attached to the door.

Fig. 5 is a perspective showing the main member of the protecting meansdetached from the latch proper.

Fig. 6 is an elevation of the strike to be attached to the door frame;and Fig. 7 is an elevation of the part of the latch to be attached tothe door.

Fig. 8 is a plan View, partly in section, showing the latch inengagement with the strike.

Fig. .9 is a similar plan view, partly in section, showing the latch ofthe strike out of engagement.

Fig. 10 is a perspective showing the strike of a modification; Fig. 11is a fragmental perspective of a part of the latch to be fastened to thedoor, which latch is a modification to be used with the strikeillustrated in Fig. 10.

Fig. 12 is a plan view, partly in section,

showing a. latch and strike of the modification illustrated in Figs. 10and 11' in engagement with one another.

Fig. 13 is a fragmental perspective showing the recess of the latch ofthe modification shown in Figs. 11 and 12.

In the embodiment shown, the strike comprises a housing member 11 havinga flange 1 to accommodate the securing means for securing the strike tothe door frame F. The

w members 18, 18 unite with the narrow wall members 20, 20 which extendat right angles to the wall members 18 and have an intermediate wallmember 21 disposed between said wall members 20, 20 which wall membersand 21 are disposed parallel to the side 13 of the frame F and formanother wall portion of the housing 11. The upper and lower wallportions and the wall portion parallel and opposite to the wallgomembers l8 and 19-are continuous and closed members while the side 13of the door frame F preferably, as illustrated, forms the remaining wallportion for the housing 11.

The part of the latch which is attached to the door D to cooperate withthe strike preferabl comprises a trough-shaped portion 22 having aflange 23 by means of which it is secured to the door D, the flange 23having screw openings 23 therein to receive secur- 3 ing means forsecuring the portion 22 to the door D and the exposed or open side ofthe trough-shaped portion 22-being closed by the side 21 of the door Dwhen so attached to such door. The side 25 of the troughshaped portion22 is preferably disposed in a plane with the side 26 of the door inwhich side 25 an opening 27 is provided through which protrudes the bolt28 and the bolt protecting member 29 which latter are both connectedinside of the trough- "haped portion 22.

For securing the trough-shaped portion 22 to the door D, the flange 7'as illustrated in dotted lines in Fig. 2.;may be provided extending atright angles to the flange 23 and adapted to be disposed in a recessspecially formed for it in the door D.

The protecting member 29 preferably comprises a flat bar 30 to besecured to the door D inside of the trongh-shaped portion 22 and forminga wall portion for the channel formed in said trough-shaped portion 22.The protecting member 29 extends out of the channel of saidtrough-shaped portion 22 and beyond the side 25 of such portion. Theportion of the protectlng member 29 extending from the trough-shapedportion 22 15 provided \"llll two wall members 31 "which extend the fulllength of the pro- 80 tecting' lm'ember 29 which protrudes from theportion and extends at right angles from said fiat bar 30 to the side 32of the opening 27 which side 32 is parallel with the side 24 of the doorD. The side 33 of the protecting member 29 is provided with a recess 34extending from one side to the other side of the protecting member 29and in length, preferably commencing at the face 25 of the trough-shapedportion 22 and extending to within a short distance of the outer freeend of the protecting member 29, the side of the recess 33 nearest thefree end of the protecting member 29 being convex as shown at 35 (Figs.4 and 5) to allow for sagging of the door.

The bolt 28 is disposed in the channel of the trough-shaped portion 22and extends out of the opening 27 having a portion of it disposedbetween the wall members 31 of the protecting member 29, which bolt 28is provided with a beveled end 36, the inclined face of which faces theside 13 of the door frame F. lVhen the bolt is extended in its lockingposition, the beveled end 36 of this plate will extend out beyond theedge 37 of the intermediate wall 21 of the housing 11 when the door D isin closed position as shown in Fig. 8 This bolt 28 as usual isresiliently extended in such outward locklng position by means disposedin the trough-shaped portion 22 and which are controlled and operated bythe pin 38 and the thumb screw 39 in the Well known manner. Theprotecting member 29 is also provided with an opening 40 in which theextension 41 (Fig. 4) is disposed, the door D being provided with asuitable opening 42 to permit a key to be inserted into such extension41. The walls 31 may further be provided with a Wall member either in:tegral or separate which will extend from one free edge to the otherfree edge of such walls 31 and will completely inclose the bolt 28 fromaccess thereto when the door D is disposed in closed position. This wallmember may also be integral with the side 25 of the portion 22. In thepresent instance, a wall member 43 (Fig. 3) is provided which is securedto the edges of the wall members 31 having one edge of it disposedsnugly against the face 25 of the portion 22, and its opposite edgeslightly beveled which opposite edge will be disposed ad ace1it to theedge of the intermediate wall 21 when the door is in closed position.

When the door is closed as shown in Fig. 8, the intermediate wall 19will be disposed in the recess 34 so that the portion 14 of theprotecting member 29 will extend toward the side 13 of the frame F, thebeveled face of; the beveled end 36 of the bolt. 28 will face the side13 of the frame F and its end will be disposed inside of the edge of theintermediate wall 21, such wall 21 forming the obstruction whichcooperates with the end 36 of the bolt 29 to lock the door.

The protecting member 2 will prevent access to, or a tool that has beeninserted between the door D and frame F from the outside of the door,from coming into contact with, the bolt member 28 to retract the same.Furthermore, the portion 44: of the protecting member 29 will act as astop which, coacting with the intermediate wall member 19, will preventthe door D from being pried from the frame F by a tool such .as a jimmyin order to jam the door so that the bolt 28 would clear the portion 21of the strike 11 without being retracted, or to even reach the boltmember 28.

In the modification shown in Figs. 10 and v 12, the strike issubstantially identical with that illustrated in Fig. l, with theaddition that the intermediate low wall member 19 is provided with anelongated lug 45. The

. latch of the modification shown in Figs. 11

and 12 is substantially identical to that illustrated in Fig. 2, withthe exception however that the bar is provided with a recess 46, insteadof the recess 31, which recess 46 does not extend completely across theprotecting member 29, but terminates a short distance from each side ofsaid protecting member 29.. By means of the modification illustrated inFigs. 10 to 13 inclusive, an

arrangement is provided whereby no hook portions such as the hookportion 44 (Fig. 9) are exposed, on to which portion, the loose flowinggarments of a by-passer might catch.

It is obvious that various changes and modifications may be made to thedetails of construction without departing from the general spirit of theinvention.

I claim:

1. A locking-mechanism, comprising a trough-shaped housing having anopening at one end adapted to inclose the lockingmechanism; a lockboltreciprocating in and out of such trough-shaped housing; a fiatbarsecured to the door abutting against theface of the bolt having a topand a bottomplate projecting over such bolt at the end of the housing,and a locking-recess formed in the back face opposite to the top andbottom plates: and a strike-member coacting with the lock-bolt so as tointerlock therewith, having a securing-flange the end of which will liein the locking-recess of the flat-bar when the bolt is in position inthe strike-member.

2. A locking-mechanism, comprising a trough-shaped housing having anopening at one end adapted to inclose the lockingmechanism; a lock-boltwith an inclined contacting slide-face reciprocating in and out of suchtrough shaped housing; a fiat-bar secured to the door abutting againstthe face of the bolt having a top and a bottom-plate projecting oversuch bolt at the end of the housing, and a locking recess formed in theback face opposite to the top and bottomplates; and a strike-membercoacting with the lock-bolt so as to interlock therewith having asecuring-flange the end of which will lie in the locking-recess of thefiat-bar when the lock-bolt is in position in the strike-member.

3. A locking-mechanism, comprising a trough-shaped housing having anopening at one end adapted to inclose the lockingmechanism; a lock-boltwith an inclined contacting slide-face reciprocating in andout of suchtrough shaped housing; a flatbar secured to the door abutting againstthe face of the bolt having a top and a bottomplate projecting over suchbolt at the end of the housing, and a locking recess closed at the upperand lower ends, formed in the back face opposite to the top andbottomplates; and a strike-member coacting with the lock-bolt so as tointerlock therewith having a securing-flange the end of which will liein the locking-recess of the fiat-bar when the bolt is in position inthe strikemember.

4. A locking-mechanism, comprising a trough-shaped'housing having anopening at one end adapted to inclose the lockingmechanism; a lock-boltwith an inclined contacting slide-face reciprocating in and out of suchtrough shaped housing; a flatbar' secured to the door abutting againstthe face of the lock-bolt having a top and a bottom plate projectingover such lock-bolt at the end of the housing, and a locking recessclosed at the upper and lower ends, formed in the back face opposite tothe top and bottom-plates; a strike-member coacting withv the lock-boltso as to interlock therewith, having a securing-fiange, the end of whichwill lie in the locking-recess of the flat-bar when the bolt is inposition in the strike-member; and the top and bottom endplates of thefiat-bar having a front-plate secured thereto to close the open front ofthe space between them, in which the lockbolt reciprocates.

CHARLES F. KOHLBERGER.

Witnesses:

' GUSTAV DREws, H. D. PENNEY.

